<template>
    <h1>{{ about }}</h1>
</template>
<script>
export default
    {
    name:'about',
   data() {
    return {
        about:"ABOUT"
    }
        }, 

    activated() {
        console.log("about组件被触发");
        },
    deactivated() {
        console.log("about组件被停用");
    },
}
</script>
<style scoped>
</style>